Hi ladies so I'm a first time mum, I don't generally write much on here but I do read ALOT of the tips so thought I would share my first very useful tip ( well to me it is ) 
Night 1 easy for me. Baby and I took to breast feeding quite well and I was so happy!
Night 2 was COMPLETELY different! very very hard I had about 1 hour broken sleep. My DD cluster fed all night and then all day the next day. I found It's slightly painful to breast feed constantly. It wasn't really hurting but by night 3 it was enough to make me re think me feeding decision a few times and wonder if I should ask somebody to pick me some powder milk up! But I soldiered through, had a few tears and then found my little trick.
My nipples were burning a bit (all normal midwife said) but becoming very uncomfortable for me to feed my lovely but very hungry baby.
So.... I put a bottle of water in the fridge and just before I put baby on to feed I pressed it against my nipple for about 20 seconds. MAGIC? for me it was. I literally sailed through night 3 with no pain no uncomfortableness and no tears from me or baby. She cluster fed again but I was definitely able to do it quite contently with no dread or fear.
And me and baby are both benefiting from me being able to stick out my plan of exclusivity breast feeding her
hope this helps ladies. Much love 